Regulating-valve for aerated beverages.



J. H. A. GARMAN n J. M. TRAVIS.

BEGULATING VALVE FOR ABRATBD BEVERAGES. APPLxoATIoN FILED 00T.' 2, m07.

UNITED STATES PATENT OFFICE.

JOHN H. A, GARMAN AND JonN M. TRAVIS, or sT. Lotus, MISSOURI, AssIGNoRs *ro MUL- reuea'r souris Y, er Leurs.. .i or nrssorfm REGULATINGVALVE FDR AEZELL'IIEID BEVERAGES.

Specification of Letters Patent.

Patented Jan. 26, 1909.

Application filed October 2, 1907. Serial No. 396,578.

To all whom it muy concern:

Be it known that wehJOHN H. A. GAR- MAN and JoHN M` TRAvIs, citizens of the United States, residing at St. Louis, State ofV Missouri, have invented certainnew and usetion of a refrigerator showing our device.

applied to a faucet mounted thereon; Fig. 2 is an enlarged longitudinal section of the valve in one of its extreme ositions; Fig. 3 is a similar section with va ve dropped to lowest position by reason of reduced pressure in the tank carrying the carbonated water; Fig. 4 is 4a cross section on the line 4-4 of Fig. 3; Fig. 5 is a top view of the valve; and Fig. 6 is a top lan of the strainer-tube and strainer carrier? thereby.

The object of our invention is tovprovide a valve which shall regulate `the flow of carbonated-water to a faucet wherein such water and syrup are mixed before they are discharged mto the tumbler or glass in which they are dispensed.

The object sought is to secure uniform quantities of water for a given quantity of syrup, and as a fresh soda-water tank delivers the Water under greater pressure than a tank half or partiallyfull, the quantity of water discharged upon turning on of the faucet 4will be greater at one staf-re of the tank than at another, so that a unifjorm mixture of water and syrup is impossible.

Our re ulating valve accomplishes the end here soug t, since it controls the flow of the carbonated water to the faucet at a rate of speed and in such quantities as will insure a uniform discharge under all circumstances..

In detail the invention may be described as follows:

Referring to the drawings, R, representsa refrigerator provided with an ice tank T, in

which is disposed the coil of a carbonatedwater supply pipe P leading through the bottom of t e refrigerator to a sodaswater tank (notshown).

, S, represents a syrup receptacle which delivers the necessary uantity of syrup through the pipe a to t e faucet A, which may be of any well known pattern,:`but preferably one in which the mixing of `the water and syrup is effected inside the faucet. The water is supplied to the faucet through a pipe b which extends into the ice tank and is coupled to lthe valve-casing 1 of our improved regulating valve.

The upper end of the pipe P is ,coupled by means of aunion 2 to the lower end of a tube 3 Awhich in turn is screwed 'into the so'elret 1" forming extension ofthe valve-casing '1,31 polygon-a1 'formation or collar 4 being formed on the tube to which a Wrench can be applied. The up er end of the tube 3 terminates in a reduce perforated extension or strainer 5 spaced a suitable distance from the inner Walls of the socket. The socket 1 is provided with aninner terminal central tube or nozzle 6 which not only serves to deliver the carbonatedwater into the valve-casing 1, but forms a guide for the reciprocating tubular valve 7 mounted to reciprocate in the valve-casing. When the valve is .in its lowest position it rests on the inner end of the socket l (Fig. 3), the nozzle 6 enterin the base of the valve. The upper end o the valve terminates in a perforated stern 8 provided with lateral discharge openings 9, a conical valve-seat 10 being formed around the terminal perforation or port 11. ln the upper end of the valve-casing 1 is a assage d which leads directly to-the pipe The casing is secured in position to the roof of the refrigerator R by a screw 12 entering a socket 13 in the casing, or it may be secured in any other mechanical manner.

The operation of the valve may be described as follows: When a fresh and highly char ed soda-water tank is coupled to the pipe and the faucet is turned on to draw the water and syrup flowing into the faucet through the pines b and a respectively, a uniform quantity of s rup will be delivered to the faucet with eacli operation of the latter; but. unless some provision be made to regulate the flow of Water, more water will pass into thetaucet when drawn from a fresh tank than after the tank has been partially emptied, because the pressure of the gas Wit in the tank gradually drops and the driving pressure on the Water decreases. With our invention the flow of water is substantially uniform because when the water tank is n'rst drawn upon, the high pressure Within it is suiiicientto force the valve 7 to its seat (Fig. 2) compelling the Water to flow into the passage d throu h the relatively constricted passage 11 on y. As the pressure within the tank drops, the valve will fall to its lowest position over the nozzle 6 (Fig. 3), the water now being free to discharge directly into the valve-casing not only through the terminal constricted passage 11 ofthe valve but through the peripheral openings 9 as well, whence it flows unobstructedl into the passage d (Fig. 3)` The result 1s that the quantity of water delivered to the faucet is substantially unform at all times as it must be obvious that a flow through a constricted passage under great pressure will approach a flow through oth the constriction 11 and openings 9 at a lower pressure. The device regulates itself, the weight of the valve being proportioned to revailing pressures in soda-water tanks. ince the quantity of water is substantially uniform when Having described our invention what we claim is A regulating valve for aerated beverages com rising a tubular casing having a terminal ischarge opening, a central nozzle at the o posite end for injectingthe beverage into.-

t e casing, a tubular valve adapted to enga e the nozzle for the lowest position of tEe valve, an upper terminal seat on the valve having a central constricted passage and having peripheral openings below the seat, the latter openings being cut ofi from communication with the discharge opening of the casing for an elevated or seated position of the valve, substantially as set forth.

vIn testimony whereof we ailix our signatures, in presence of two witnesses. v

JOHN H. A. GARMAN.

JOHN M. TRAVIS.y

Witnesses EMIL STAREK, MARY D. WHITCOMB. 

